Patent US2791670A successfully refreshed from Google Patents.
US2791670A
Expired / Lapsed
US
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Air-conditioning system
Assignee: Honeywell Inc
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Filing: 1955-12-22
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Granted: 1957-05-07
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Expires: 1975-12-22
Abstract
No abstract record available.
Inventors
- 👤 Carl P Murphy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:35
CPC Classifications
B; B60; B60H; B60H1/00; B60H1/00357; B60H1/00371; G; G05; G05D; G05D23/00; G05D23/19; G05D23/1927; G05D23/193; G05D23/1931; G05D23/20; G05D23/24; B60H1/00007; B60H1/00207; B60H2001/00235
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-05-06 | 1960-11-05 | 1961-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-05-06 | 1964-11-05 | 1965-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-05-06 | 1968-11-05 | 1969-05-07 | $7700.00 | Window Closed / Lapsed |